Laundry plumbing setup with two AAVs causes sewer gas and gurgling in adjacent sink; unsure how to properly vent both washer and sink.

Existing plumbing has incorrect venting configuration; homeowner lacks clear guidance on proper AAV placement and compliance with local code for a 102-year-old house.

Severity

3Medium

Willingness to Pay

implied

Added

Jun 28, 2026

Workarounds Described

plans to cut condensate line and cap it
plans to steal AAV from right pipe for air gap on pump hose
plans to extend 1.5" pipe

Implied Software Gaps

App that provides correct venting diagrams and code-compliant solutions for DIY plumbing

App Concept

VentWise Pro

VentWise Pro is a mobile app that guides homeowners and DIYers through proper plumbing vent troubleshooting and installation. Using step-by-step diagnostics, code lookup, and 3D diagrams, it helps users identify and fix venting issues like gurgling sinks or sewer gas odors.

Key Features

Step-by-step vent troubleshooting wizard
Local plumbing code lookup by address
3D interactive diagrams of common vent configurations
Component identification (AAV types, pipe sizes) via photo recognition

Target Users: DIY homeowners and handymen working on residential plumbing repairs, especially older homes.

Revenue Model: Freemium with $9.99 one-time fee per troubleshooting guide or $4.99/month subscription for unlimited guides and code updates.

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